Pipe tongs



C. E. EAGAN PIPE TONGS Sept. 18, 1934.

Filed April 13, 1934 2 Sheets-Sheet 1 Invgnlnr a (/7: Zaj a/r C. E. EAGAN Sept. 18, 1934.

2 Sheets-Sheet 2 Inventor Patented Sept. 18, 1934 stares LQW lGS' P AT err 4 Claims.

The present invention relates to pipe tongs and has for its object to provide in combination a pair of swingable grips or jaws and a pair of slidable grips or jaws cooperativelyassociated in 510. compact and convenient manner for easy and eificient operation.

Another important object of the invention resides in the provision of pipe tongs of this nature which possess simplicity, durability, ease :of manipulation, cheapness of manufacture and being well adapted to the purpose for which the mechanism is designed.

With the above and numerous other objects'in view as will appear as the description proceeds, the invention consists in certain novel features of construction, and in the combination and ar range-merit of parts as will hereinafter be more fully described and claimed.

In the drawings:

Figure 1 is an elevation of this mechanism showing the slits or jaws in open position.

Figure 2 is a similar view partly in section showing the jaws or slits in closed position.

Figure 3 is an elevation at right angles to that 25 shown in Figures 1 and 2.

igure 4 is an end elevation.

Referring to the drawings in detail it will be seen that numerals 5 denote a pair of plates disposed in coextensive parallelism by means of bolts 6, 6, and 7. These plates are provided with semi-circular edges 8 integrally connected by a semi-circular web 9 having a pair of openings 10 situated between the bolt 7 and the bolts 6, 6. Grips or jaws 11 have shanks 12 slidable through the openings 10 and are limited in movement by pin and slot connections 14. Numerals 15 de note a pair of grips or jaws on curved shanks 16 the ends of which are rockable on the bolts 6. Curved links 1'7 and 18 are pivotally engaged with intermediate portions of the shanks 16 as at 19. The link 17 is substantially straight for about one-half of its length and then is slightly curved and pivotally engaged as at 20 with a lever 21 rockably mounted on the bolt 7. The link 18 is of an ogee curvature and is pivotally engaged as at 22 with the lever 21. The pivotal connections 20 and 22 are on opposite sides of the bolt 7. The lever 21 when swung from the position shown in Figure 1 to the position shown. in Figure 2 causes the grips or jaws 15 to move from open to closed position and simultaneously the links 17 and 18 engage the shanks 12 and move the grips or 11 toward the jaws or grips 15. All four of these grips or jaws, therefore, move toward each other or away from each other simultaneously.

It is thought that the construction, operation, utility and advantages or" this invention will now be quite apparent to those skilled in this art without a more detailed description thereof.

The present embodiment of the invention has been described in considerable detail merely for the purposes of exemplification since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction, and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

1. A device of the class described including a body, a lever pivotally mounted intermediate its ends and adjacent one end Within the body, a pair of shanks pivotally mounted in the body and. having. jaws on the ends thereof, links engaged with intermediate portions of the shanks and with the lever one to each side of the pivot thereof, a pair of jaws having shanks slidable in the body and engageable by intermediate portions of the links to be actuated thereby.

2. A device of the class described including a body, 'a lever pivotally mounted intermediate its ends and adjacent one end within the body, a pair of shanks pivotally mounted in the body and having jaws on the ends thereof, links engaged with intermediate portions of the shanks and with the lever one to each side of the pivot thereof, a pair of jaws having shanks slidable in the body and engageable by intermediate portions of the links to be actuated thereby, the last mentioned shanks having pin and slot connections with the body.

3. A device of the class described including a body, a lever pivotally mounted intermediate its ends and adjacent one end within the body, a pair of shanks pivotally mounted in the body and having jaws on the ends thereof, links engaged with intermediate portions of the shanks and with the lever one to each side of the pivot thereof, a pair of jaws having shanks slidable in the body and engageable by intermediate portions of the links to be actuated thereby, the last mentioned shanks having pin and slot connections with the body, said body being in the form of a pair of spaced parallel coextensive (ill in the body and engageable by intermediate portions of the links to be actuated thereby, the last mentioned shanks having pin and slot connections with the body, said body being in the form of a pair of spaced parallel coextensive plates having arcuate edges connected by an arcuate web, in which is located the openings in which the last mentioned shanks are slidable, one of the links being substantially straightfor half of its length and the other half being slightly curved, and the other link having an ogee curvature.

CLARENCE ALEX EAGAN. 

